Multiple vulnerabilities in Microsoft .NET Framework

Published: 2019-07-10 23:31:20 | Updated: 2019-07-11
Severity Medium
Patch available YES
Number of vulnerabilities 2
CVE ID CVE-2019-1083
CVE-2019-1113
CVSSv3 4.6 [CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]
6.5 [CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CWE ID CWE-20
Exploitation vector Network
Public exploit N/A
Vulnerable software Microsoft .NET Framework
Visual Studio
Vulnerable software versions Microsoft .NET Framework 4.8
Microsoft .NET Framework 4.7.2
Microsoft .NET Framework 4.7.1

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Visual Studio 2017
Visual Studio 2017 version 15.9
Visual Studio 2019 version 16.0
Visual Studio 2019 version 16.1
Vendor URL Microsoft

Security Advisory

1) Input validation error

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input within the Microsoft Common Object Runtime Library. A remote unauthenticated attacker can send a specially crafted HTTP request to the affected .NET application and cause a denial of service condition.

Remediation

Install updates from vendor's website.

External links

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1083

2) Input validation error

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to insufficient validation of user-supplied input when the software fails to check the source markup of a file.

An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the current user in .NET software. Successful exploitation of the vulnerability allows remote code execution but requires that a user open a specially crafted file with an affected version of .NET Framework.

Remediation

Install update from vendor's website.

External links

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1113

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